The Illegitimate Prince's Baby by Michelle Celmer

Blurb:

Prince Ethan would never have slept with a palace employee…normally. Then plain-Jane Elizabeth Pryce appeared at the royal ball, unrecognizably gorgeous— and too desirable to ignore. When he finally discovered her true identity, he also learned she was carrying his child. A royal courtship would defuse the scandal. But would a marriage inflame the passion that still burned between them?

Harlequin – 100

Others – 44